Matematika

Pertanyaan


1)2/3 (4m+5/4)=m-2
2) -1/2 (3p-1/2)=1/3 (2p+3)

1 Jawaban

  • 1) ⅔(4m + 5/4) = m - 2
    8/3 m + 10/12 = m - 2
    8/3 m - m = - 2 - 10/12
    8/3 m - 3/3 m = - 24/12 - 10/12
    5/3 m = - 34/12
    m = - 34/12 ÷ 5/3
    m = - 34/12 × 3/5
    m = - 34/20
    m = - 1 14/20
    m = - 1 7/10

    2) - ½(3p - ½) = ⅓ (2p + 3)
    - 3/2 p + ¼ = ⅔ p + 1
    - 3/2 p - ⅔ p = 1 - ¼
    - 9/6 p - 4/6 p = ¾
    - 13/6 p = ¾
    p = ¾ ÷ (-13/6)
    p = ¾ × (- 6/13)
    p = - 9/26

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